<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        iframe {
            width: 1000px;
            height: 800px;
        }
    </style>
</head>

<body>
    <!-- a连接可以间接控制iframe的src属性 -->
    <!-- 如果要让 iframe标签跳转,而不是整个页面跳转,需要traget的name属性配合-->
    <!-- _self当前页面跳转   _brank在新页面中跳转-->
    <a target="aaa" href="./login.html"></a>
    <a target="aaa" href="./index.html"></a>
    <a target="aaa" href="./dashboard.html"></a>
    <a target="aaa" href="./student.html"></a>
    <a target="aaa" href="./score.html"></a>
    <!--iframe标签,可以做页面包含  -->
    <!-- frameborder="0" 去除边框 -->
    <iframe src="./login.html"></iframe>
</body>

</html>